Elon Musk envisions a world where humanoid robots don't just toil in factories. They remake society. Abundance for all. Penthouses for everyone who wants one. This isn't fantasy. It's Tesla's roadmap, straight from the CEO's X posts and earnings calls. Musk laid it out over a weekend in April: AI and robotics will surge production of goods and services several orders of magnitude beyond today's levels. Scarcity? Gone. Yahoo Finance captured his words: "Actually, AI/Robotics will mean everyone can have a penthouse if they want." But here's the catch. Massive output demands massive money flow, or deflation hits hard. Musk pushes universal high income through federal checks to match the boom. "AI/robotics will produce goods & services far in excess of the increase in the money supply, so there will not be inflation," he posted. Critics balk. Print cash without output growth? Prices skyrocket. Musk counters: output will explode. No inflation. Instead, risk of the opposite.…